485 prompts matching "A timed energy and power problem set"
Real-life Nigeria: The SS1 Physics topics I still need to practise
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Worked example: Finding the resultant of two perpendicular vectors
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Spot my mistake: Forgetting to state the direction of a resultant
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Worked example: Finding the resultant of forces acting in a line
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Spot my mistake: Assuming friction always opposes useful motion
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Real-life Nigeria: Reducing friction in Nigerian machinery
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Worked example: Finding acceleration from a velocity-time graph
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Spot my mistake: Using an equation of motion with the wrong sign for deceleration
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Real-life Nigeria: Describing a Nigerian bus journey with a motion graph
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Worked example: Calculating the acceleration produced by a given force
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Real-life Nigeria: Newton's laws in Nigerian road safety
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Worked example: Calculating the impulse delivered in a collision
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Spot my mistake: Ignoring direction when adding momenta
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Worked example: Calculating the mechanical advantage of a lever
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Spot my mistake: Assuming a machine can be one hundred per cent efficient
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Worked example: Calculating the heat needed to boil a mass of water
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Exam prep: The factors affecting the rate of evaporation
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Spot my mistake: Assuming evaporation happens only at the boiling point
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Real-life Nigeria: Cooling by evaporation in Nigerian daily life
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Worked example: Calculating the increase in length of a heated rod
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